Display panel and display device

Abstract

Provided are a display panel and a display device. The display panel includes a photosensitive module and a touch electrode line, where the photosensitive module includes a photosensitive transistor, a detection signal is applied to a first electrode of the photosensitive transistor, the photosensitive transistor is configured to generate a photocurrent signal according to the detection signal and illumination, and the touch electrode line is configured to transmit a touch signal. A driving stage of the display panel includes display stages and vertical intermittent stages, the display stages and the vertical intermittent stages are arranged alternately, and the vertical intermittent stages include touch stages. In multiple touch stages, the detection signal has a first voltage, and in at least one of the display stages, the detection signal has a second voltage, the second voltage is not equal to the first voltage.

What is claimed is: 
     
         1 . A display panel, comprising a photosensitive module and a touch electrode line, wherein the photosensitive module comprises a photosensitive transistor, wherein a detection signal is applied to a first electrode of the photosensitive transistor, the photosensitive transistor is configured to generate a photocurrent signal according to the detection signal and illumination, and the touch electrode line is configured to transmit a touch signal;
 a driving stage of the display panel comprises display stages and vertical intermittent stages, wherein the display stages and the vertical intermittent stages are arranged alternately, and a vertical intermittent stage of the vertical intermittent stages comprises a touch stage; and   in a plurality of touch stages, the detection signal has a first voltage, and in at least one of the display stages, the detection signal has a second voltage, wherein the second voltage and the first voltage are not identical.   
     
     
         2 . The display panel according to  claim 1 , wherein the vertical intermittent stage further comprises a light detection stage, and the detection signal has the first voltage in the light detection stage. 
     
     
         3 . The display panel according to  claim 2 , wherein the light detection stage overlaps the touch stage. 
     
     
         4 . The display panel according to  claim 1 , wherein the first voltage and the second voltage have opposite polarities. 
     
     
         5 . The display panel according to  claim 4 , wherein the display stages comprise first display stages and second display stages, wherein the first display stages and the second display stages are arranged alternately; and
 the detection signal has the first voltage in the first display stages, and the detection signal has the second voltage in the second display stages;   wherein an absolute value of the first voltage is equal to an absolute value of the second voltage.   
     
     
         6 . The display panel according to  claim 1 , wherein the display stages comprise first display stages and second display stages, and the vertical intermittent stages comprise first vertical intermittent stages and second vertical intermittent stages, wherein the first display stages, the first vertical intermittent stages, the second display stages and the second vertical intermittent stages are respectively arranged in sequence; and
 a voltage of the detection signal in the first vertical intermittent stages is the same as a voltage of the detection signal in the first display stages, and the photocurrent signal is collected in the first vertical intermittent stages.   
     
     
         7 . The display panel according to  claim 1 , wherein the vertical intermittent stage further comprises a light detection stage; and
 the detection signal has the second voltage in at least one light detection stage.   
     
     
         8 . The display panel according to  claim 7 , wherein the display stages comprise first display stages and second display stages, wherein the first display stages and the second display stages are arranged alternately; and
 the detection signal has the second voltage in the first display stages, and the detection signal has a third voltage in the second display stages, wherein the first voltage, the second voltage and the third voltage are not identical;   wherein the second voltage is greater than the third voltage; and   an absolute value of the second voltage is equal to an absolute value of the third voltage, and the second voltage and the third voltage have opposite polarities; or the third voltage is in a high-impedance state.   
     
     
         9 . The display panel according to  claim 8 , wherein the vertical intermittent stages comprise first vertical intermittent stages and second vertical intermittent stages, wherein the first display stages, the first vertical intermittent stages, the second display stages and the second vertical intermittent stages are respectively arranged in sequence; and
 the detection signal has the second voltage in the first vertical intermittent stages, and the detection signal has the third voltage in the second vertical intermittent stages;   wherein a light detection stage in a first vertical intermittent stage of the first vertical intermittent stages is located between a touch stage in the first vertical intermittent stage and a first display stage before the first vertical intermittent stage; and   a light detection stage in a second vertical intermittent stage of the second vertical intermittent stages is located between a touch stage in the second vertical intermittent stage and a second display stage before the second vertical intermittent stage.   
     
     
         10 . The display panel according to  claim 1 , wherein the first voltage is a ground voltage. 
     
     
         11 . The display panel according to  claim 1 , wherein the display stages comprise third display stages and fourth display stages, wherein at least two of the fourth display stages are disposed between adjacent third display stages among the third display stages; and
 the detection signal has the first voltage in the third display stages, and in a vertical intermittent stage among the vertical intermittent stages with a shortest time interval from a third display stage among the third display stages, the photocurrent signal is collected.   
     
     
         12 . The display panel according to  claim 1 , wherein the display stages comprise first display stage groups and second display stage groups, wherein the first display stage groups and the second display stage groups are arranged alternately;
 a first display stage group of the first display stage groups comprises at least two fifth display stages, and a second display stage group of the second display stage groups comprises at least two sixth display stages; and   the detection signal has the first voltage in the at least two fifth display stages, and in a vertical intermittent stage among the vertical intermittent stages with a shortest time interval from a fifth display stage among the at least two fifth display stages, the photocurrent signal is collected.   
     
     
         13 . The display panel according to  claim 1 , comprising a thin-film transistor;
 wherein at least one of the first voltage and the second voltage is less than a gate control positive voltage, and the gate control positive voltage is configured to control the thin-film transistor to turn on or off.   
     
     
         14 . The display panel according to  claim 1 , further comprising a detection signal line, wherein the detection signal line is electrically connected to the first electrode of the photosensitive transistor and configured to transmit the detection signal. 
     
     
         15 . The display panel according to  claim 14 , comprising a display region, a bottom side non-display region and a top side non-display region, wherein the top side non-display region and the bottom side non-display region are located on two opposite sides of the display region;
 at least a portion of the detection signal line is located in the bottom side non-display region and extends from the bottom side non-display region to the top side non-display region, and at least a portion of the touch electrode line is located in the bottom side non-display region and extends from the bottom side non-display region to the display region; and   an end of the touch electrode line away from the bottom side non-display region is adjacent to the detection signal line in the top side non-display region;   wherein the photosensitive module is located in the top side non-display region;   wherein the display panel further comprises a side non-display region, the side non-display region is connected to the top side non-display region and the bottom side non-display region; and at least a portion of the detection signal line is located in the side non-display region.   
     
     
         16 . The display panel according to  claim 14 , further comprising a first detection output signal line and at least one second detection output signal line; wherein
 the photosensitive module comprises at least two photosensitive transistors and a light-shielding element, wherein the at least two photosensitive transistors comprise a first photosensitive transistor and a second photosensitive transistor, wherein a second electrode of the first photosensitive transistor is electrically connected to the first detection output signal line, and a second electrode of the second photosensitive transistor is electrically connected to the at least one second detection output signal line; and   the light-shielding element shields a photosensitive material layer of the first photosensitive transistor.   
     
     
         17 . A display panel, comprising a photosensitive module and a touch electrode line, wherein the photosensitive module comprises a photosensitive transistor, wherein a detection signal is applied to a first electrode of the photosensitive transistor, the photosensitive transistor is configured to generate a photocurrent signal according to the detection signal and illumination, and the touch electrode line is configured to transmit a touch signal;
 a driving stage of the display panel comprises display stages and vertical intermittent stages, wherein the display stages and the vertical intermittent stages are arranged alternately, and a vertical intermittent stage of the vertical intermittent stages comprises a touch stage and a light detection stage; and   in a plurality of touch stages, the detection signal has a first voltage, and in at least one light detection stage, the detection signal has a second voltage, wherein the second voltage and the first voltage are not identical.   
     
     
         18 . The display panel according to  claim 17 , wherein the detection signal has the first voltage in the display stages. 
     
     
         19 . The display panel according to  claim 18 , wherein the vertical intermittent stages comprise first vertical intermittent stages and second vertical intermittent stages, wherein the first vertical intermittent stages and the second vertical intermittent stages are arranged alternately;
 in a light detection stage in the first vertical intermittent stages, the detection signal has the second voltage, and in a light detection stage in the second vertical intermittent stages, the detection signal has a third voltage; and   an absolute value of the second voltage is equal to an absolute value of the third voltage, and the second voltage and the third voltage have opposite polarities.   
     
     
         20 . A display device, comprising a display panel; wherein the display panel comprises a photosensitive module and a touch electrode line, wherein the photosensitive module comprises a photosensitive transistor, wherein a detection signal is applied to a first electrode of the photosensitive transistor, the photosensitive transistor is configured to generate a photocurrent signal according to the detection signal and illumination, and the touch electrode line is configured to transmit a touch signal;
 a driving stage of the display panel comprises display stages and vertical intermittent stages, wherein the display stages and the vertical intermittent stages are arranged alternately, and a vertical intermittent stage of the vertical intermittent stages comprises a touch stage; and   in a plurality of touch stages, the detection signal has a first voltage, and in at least one of the display stages, the detection signal has a second voltage, wherein the second voltage and the first voltage are not identical.